LTC1049 Low Power Zero-Drift Operational Amplifier with Internal Capacitors FeaTuresDescripTion n Low Supply Current: 200µA The LTC®1049 is a high performance, low power zero-drift n No External Components Required operational amplifier. The two sample-and-hold capacitors n Maximum Offset Voltage: 10µV usually required externally by other chopper stabilized n Maximum Offset Voltage Drift: 0.1µV/°C amplifiers are integrated on the chip. Further, the LTC1049 n Single Supply Operation: 4.75V to 16V offers superior DC and AC performance with a nominal n Input Common Mode Range Includes Ground supply current of only 200µA. n Output Swings to Ground The LTC1049 has a typical offset voltage of 2µV, drift of n Typical Overload Recovery Time: 6ms 0.02µV/°C, 0.1Hz to 10Hz input noise voltage of 3µV n P-P Available in 8-Pin SO and PDIP Packages and typical voltage gain of 160dB. The slew rate is 0.8V/µs with a gain bandwidth product of 0.8MHz. applicaTions Overload recovery time from a saturation condition is n 6ms, a significant improvement over chopper amplifiers 4mA to 20mA Current Loops n using external capacitors. Thermocouple Amplifiers n Electronic Scales The LTC1049 is available in a standard 8-pin plastic dual n Medical Instrumentation in line, as well as an 8-pin SO package. The LTC1049 can n Strain Gauge Amplifiers be a plug-in replacement for most standard op amps with n High Resolution Data Acquisition improved DC performance and substantial power savings. L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. Typical applicaTionSingle Supply Thermocouple Amplifier 0.068µF VIN = 5V 246k 1k 2 7 – 2 6 V LTC1049 OUT = 0V TO 4V 7 3 FOR 0°C TO 400°C K – + + 4 LT®1025A 0.1µF GND R– TYPE K 4 5 SUPPLY CURRENT = 280µA LTC1049 • TA01 1049fb 1 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Package/order information Electrical Characteristics Typical Performance Characteristics Test Circuits Applications Information Typical Applications Package Description Typical Application
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